CN2617098Y

CN2617098Y - Communication silent device

Info

Publication number: CN2617098Y
Application number: CN 03234345
Authority: CN
Inventors: 罗洪武
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-05-13
Filing date: 2003-05-13
Publication date: 2004-05-19
Anticipated expiration: 2013-05-13

Abstract

The utility model discloses a communication silent device comprising a receiving circuit, an amplifying circuit, an execution circuit and a direct current power supply circuit. Telecommunication signals of 900-1800MHz are received by the receiving circuit, and then a signal voltage is amplified by the amplifying circuit; the execution circuit is driven to control the ACC line input end of the frame head or a sound entering circuit; the needed voltages of the receiving circuit and the amplifying circuit are supplied by the direct current power supply circuit. The utility model has the advantages of simple structure, low manufacture cost and strong operability. When in communication, the stereo enters a halted state automatically. After the communication, the broadcast function is re-started automatically. The utility model avoids manual operation trouble in turning down sound volume in communication and turning on the sound volume after the communication, and brings convenience for users in communication.

Description

The communication silencer

Technical field

The utility model relates to a kind of when telephonic communication, can regulate and control vehicle audio or the television set sound equipment makes it be in mute state, and communication finishes and can recover the regulation device that its sound equipment is play automatically.

Background technology

Modern society enters the information age, and mechanics of communication is very flourishing, and communication apparatus is various, and various telephone sets, mobile phone have been commonly people and have had.Vehicle audio, televising makes people not only obtain various information immediately, but also obtains culture, artistic treat.Yet, the sound equipment of these equipment has often disturbed communication again, can't hear its ringing tone when making mobile phone that communication signal be arranged such as the concert of taking advantage of when carrying automobile, play on the car, the sound equipment of television set can influence the sound effect that receives calls, in order not hear the other side's sound, must go to turn down the volume of television set, go to recover volume after communication finishes again, pretty troublesome in operation.

Summary of the invention

Goal of the invention of the present utility model is: can regulate and control sound equipment when the communication and make it be in mute state for the user provides a kind of, communication can recover the communication silencing apparatus that sound equipment is play again automatically when finishing.

Goal of the invention of the present utility model realizes by implementing following technical proposals:

A kind of communication silencing apparatus is characterized in that: include receiving circuit, amplifying circuit, executive circuit and DC power supply circuit; After the telecommunication signal reception of receiving circuit with 900-1800MHz, through amplifying circuit signal voltage is amplified, drive executive circuit control head ACC line input or advance the sound circuit, DC power supply circuit offers amplifying circuit and receiving circuit work required voltage.

Additional technical feature is:

1. receiving circuit is that frequency is the induction chip IC of 900-1800MHz;

2. amplifying circuit is the second amplifying circuit of being made up of A1015 and C3246;

3. executive circuit is control head ACC line input of being made up of relay J or the relay circuit that advances the sound circuit.

Advantage of the present utility model is: apparatus structure is simple, cost of manufacture is cheap, and is workable; This device is inserted on the vehicle audio, and when occupant's communication, sound equipment enters halted state automatically, and after communication finished, sound equipment recovered to continue to play automatically; This device is inserted in the television set, and when communication telephones, television set is in mute state automatically, and picture is unaffected, and after communication finished, television set automatically restored to original volume.This device can effectively prevent because of being subjected to the influence of sound equipment or sound of television, when being arranged, communication signal can not hear the situation of phone ringing, also removed from when communication simultaneously and must remove to close small volume artificially, gone to recover the troublesome operations of volume after communication finishes again, for the intelligencer provides great facility.

Description of drawings

Fig. 1 is the utility model structural principle block diagram

Fig. 2 is the utility model circuit structure schematic diagram

Embodiment

The communication silencer is made up of receiving circuit, amplifying circuit, executive circuit and DC power supply circuit; Receiving circuit adopts the induction chip IC of 900-1800MHz, amplifying circuit adopts second amplifying circuit, the prime amplification is made up of A1015, and back level amplification is made up of Darlington transistor C3246, and executive circuit is made up of the relay circuit that is installed in control volume switch on the stereo set.The output of induction chip IC is connected on the ground level of A1015, and when induction chip collected communication signal, output low level made the A1015 conducting, and this signal amplifies through A1015, by its collector electrode output, is connected on 100UF electrochemical capacitor C ₂Last compensation smoothly is connected on the base stage of Darlington transistor C3246 simultaneously, makes Darlington transistor C3246 conducting, and its emitter output drives carries out control relay J, and the relay J action is controlled head ACC line input or advanced the sound circuit.IN4001 in the relay circuit is that relay protection holds the stream diode.Input service power supply in the DC power supply circuit is 12V, receives Darlington transistor C3246 collector electrode, another road after the current-limiting resistance current limliting of 1/2W470 Ω, through the voltage stabilizing didoe ZD of IW3.3V over the ground voltage stabilizing into about the 3.3V power supply, 10UF electrochemical capacitor C ₁After filtering is level and smooth, supply with emitter and the induction chip power end of A1015, C104 electric capacity is high-frequency filter capacitor, in order to reduce the high-frequency signal and the ripple of power supply input.

Claims

1, a kind of communication silencing apparatus is characterized in that: a kind of communication silencing apparatus is characterized in that: include communication signal receiving circuit, amplifying circuit, executive circuit and DC power supply circuit; After the telecommunication signal reception of receiving circuit with 900-1800MHz, through amplifying circuit signal voltage is amplified, drive and carry out control circuit control head ACC line input or advance the sound circuit, DC power supply circuit offers amplifying circuit and receiving circuit work required voltage.

2, according to the described communication silencing apparatus of claim 1, it is characterized in that: receiving circuit is the induction chip IC of 900-1800MHz.

3, according to the described communication silencing apparatus of claim 1, it is characterized in that: the second amplifying circuit of amplifying circuit for forming by A1015 and C3246.

4, according to the described communication silencing apparatus of claim 1, it is characterized in that: executive circuit is control head ACC line input of being made up of relay J or the relay circuit that advances the sound circuit.